Hello everybody, I've been playing with Hadoop for a few days, and I'm only starting to explore it's beauty.
In an attempt to learn on the Grep Example, I ended up wondering whether you can actually extract from within a map, on which file you are currently running. e.g. Suppose I want to grep through a set of files, and instead of having only a global response, I need an output per file as well. > ./bin/hadoop jar hadoop-0.16.1-examples.jar grep input output "au[a-c]" > input/file1.txt 3 aua > input/file1.txt 2 aub > input/file1.txt 1 auc > input/file2.txt 1 aua > input/file2.txt 2 aub > input/file2.txt 3 auc > 4 aua > 4 aub > 4 auc now this could be really easy to do (just hit the right variable in the JobConf?) or it could be absolutely impossible, since its hadoop's innate goal to extract from file-related stuff - I'd really appreciate a hint or a link to read about this. regards, Brensch -- View this message in context: http://www.nabble.com/Howto-%3A-Monitor-File-Job-allocation-tp16297900p16297900.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
